4/23/2009 @ 6:00AM

In Depth: Most Valuable U.S. Coins

No. 2: 1933 Double Eagle ($8.5 million)

Though it’s not the most valuable coin, the 1933 Double Eagle is perhaps the rarest and most famous. As a result of a bizarre series of events that started unfolding nearly a century ago, there is only one in existence that’s legal to own.

Read on for more on collectibles, from a rare Christmas card to a Rolling Stones guitar.